D. Install adequate unions and flanges to allow convenient removal of valves,
meters, and other equipment from the pipe system.
E. Pipe and fittings shall be cleaned before being installed to remove foreign
material.
F. Screwed connections shall be made with thread compound applied to male
thread only. Teflon tape or compound may be used for PVC, steel, or copper.
G. Proper fittings shall be used for changes in direction. Pipe shall be installed at
right angles or parallel to walls and floors. Provide low points and union
connections where needed to allow drainage.
H. All penetrations through structures shall be sealed weather-tight.
I. Check layout of pipe prior to final installation, and verify adequate clearance
between valves, fittings, instruments, and structural components can be
achieved.
3.2 VALVES
A. Locate and orient valves and flow meters to allow unobstructed manual
operation, and access for maintenance.
B. Verify correct orientation of check valves and butterfly valves with flow
direction.
3.3. FLEXIBLE HOSES
A.
Flexible hoses shall have female couplings at both ends of hose. Male adapters
shall be installed on pipe system.
Lay hose neatly in vault between end connections. Install in a manner to prevent
kinking, or straining of connections.
Secure quick disconnect fittings to flexible hose using clamps specified above.
Follow manufacturer’s installation instructions.
3.4 PIPESUPPORTS
A.
Pipe supports shall be independent of equipment to which pipe is connected.
Equipment shall be removable without affecting pipe supports.
At a minimum, pipe supports shall be spaced to conform to requirements of
Chapter 1, Section 6 of the ANSI Code for Pressure Piping (B-31.1).
File No. 3066.09 Sump Riser Building Pipe, Fittings, and Appurtenances 15310- 5 of 7 December 2017
